Investigating the Stability of Lentil Genotypes Using Parametric Statistics in Rainfed Conditions

In order to evaluate the stability of the performance of lentil ecotypes in Qazvin province, an experiment in the form of a randomized blocks design was carried out in six planting dates with three replications at the soil and water conservation research station of Tehran University in Kohin rainfed lands. The results of composite variance analysis showed a significant difference between the environments, genotypes and the genotype × environment interaction. The results of parametric statistics analysis showed that According to the berhart and Russell method, the Pardis green genotype with the highest yield and line slope has special adaptability to Autumn planting, and the FILIP 2004-31L genotype with a line slope close to one was a desirable and stable genotype. Based on Rick's equivalence and stability variance of Shukla, FILIP 2004-31L genotype was the most stable and Sabz Pardis were the most unstable genotype .According to Plaisted Peterson parameters θᵢ, genotypes 7, 14, 5, and 6 with the lowest amount of θᵢ are more stable and in terms parameter Plaisted θ₍ᵢ₎ and genotypes 7, 14, 5,and 6 are more stable with the highest amount of GE variance. Also, according to Francis and Kanenberg CVi parameter, genotypes with low coefficient of variation of environmental variance (EV) and Average high yield seems to be the most desirable. Genotypes 4, 1, and 8 are more stable. In total, genotype 7 having a low regression deviation bi=1.04, Rick's equivalence (Wi2), and Romero's environmental variance, Peterson's plastid θᵢ is low and relatively favorable performance is considered as a stable genotype.